LoRa (Long-Range) High-Density Sensors for Internet of Things

Table 1

LoRa modulation.

Technology	LoRa
Technique	Chirp spread spectrum
Modulation	Frequency chirps
Channel bandwidth (uplink)	125 kHz
	250 kHz
	500 kHz
Low power	Battery lifetime of decades
Long range	Tens of kilometers
Data rate	0.3-50 kbps
Sensitivity	-137 dBm
Link budget	Above 140 dB
Band	ISM: sub-GHz
Communication type	Bidirectional
Transmit power	14 dBm
Network topology	Star
Proprietary	Semtech